The square itself is five hundred yards wide, five times ______ the size of St. Peter's in Rome.[2008]
【正确答案】 A
【答案解析】解析:考查倍数的表达。“A is倍数+the size of B”(A是B的几倍大小),这是固定用法,中间不需要加任何词,故选A。